What was found
STABILIZER FAILS TO TRIM NOSE UP ISSUE WAS INTERMITTENT. 1ST TIME WAS AT GATE. SPOKE 2 MX BEGAN WORKING AGAIN, STOPPED WORKING AFTER TO T/S USING FIM 27-41-00-810-803. PERFORMED UP TO STEP 3 (D) FOUND 28V DC AT PIN 7 OF C/P D700 AND NO POWER AT PIN 6 WITH THE A/C BEING COMMANDED TO TRIM UP. NEXT STEP IN FIM IS TO REPLACE STM M1659 AND THEN DO A REPAIR CONFIRMATION, REF AMM 27-41-71-000-801. R&R HORIZONTAL STAB TRIM MOTOR. PERFORMED MOTOR TEST, OPS CHECK GOOD. NO FAULTS NOTED. ROTABLE PARTS CHANGE WAS INDICATED-TT NR 1021544 SN OFF 5720 MOTOR, STAB, HO OFF 29-2741-9-0011 5720 ON 29-2741-9-0011 2715.